William-c



W. C. TYLER.

TIRE MAKING MACHINE. APPLICATION FILED JUNE 21. ms.

Patented Oct. 28, 1919.

2 SHEETS-SHIRT 1.

W. C. TYLER.

TIRE MAKING MACHINE. APPLICATION FILED JUNE 21. IQH].

1,320,295, Patented Oct. 28,1919.

2 SHEETS-SHEET 2.

3mm W/Z/AM C 77157 WILLIAM C. TYLER, OF RACINE, TWISCON SIN, ASSIGNOR TO THE GOODYEAR TIRE 85 RUBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

Specification of Letters Patent.

Application filed June 27, 1912. Serial No. 242,234.

a citizen of the United States, residing at .Raclne, 1n the county of Racine, State of lVi sconsimhave invented new and useful Improvements in Tire-Making Machines, of which the following is a specification.

This invention relates primarily to tirema-king machines, and has more particular reference to machines for constructing tirecarcasses.

y In structures of this type, there is usually employed a. pair of spaced-apart stitche-rdisks or members mounted on supportingarms or carriers which, 111 turn, are disposed.

for a swinging movement on a carriage which has an. advancing anda receding movement in respect to a rotatable tire- Generally, it has been the riers manually. This necessarily imposes considerable labor and strain on -the opernator and, besides, it is difficult,- usually, to

.not adapted successfully insure thereby uniform action on both. sides.

of the core. In fact, it is practically impossible to obtain equal pressure on bothsides of the core. It has, it is' true, been proposed-to utilize various means for automatically operating-or at least control- 1ing'the swinging movements of these arms orcarriers; but, for the most part, these structures have been complicated and are to perform their req 'ired controlling functlons both for the conveniently changing the relative position ftion, first a and, then,

' ations.

under-bead and for the over-bead oper- It is, therefore, a primary object of my invention to provide a structure, of great simplicity and compactness, wh-ich-1s capable of automatically -positioning and controlling the carriers wlth equal pressure at all times on opposite sides of the core, for the over-bead as well asfor the under-bead operations.

Another ob ect 1s to provide means for of the parts so that they are adapted to funcfor the under-bead operation for the over-bead operat1on.

vide a novel means for effecting movement of .the carrier-sustaining carriage whereby it and thecarriers thereonare moved to ard and away from the axle, of the core suit able switch 5.

and, at the same time, swinging of the carriers is effected in proper synchronism with regard to the traveling movement of the carriage.

' A more specific object is to provide a camcontrolled stitcher-structure capable of actuatlng the stitchers into, and maintaining them in engagement with thefabric-plies on the core in as nearly a human manner as possible. w i

7 Still another specific object is to provide a cam-member for accurately and equally controlling the pressure of the oppositelydisposed stitchers against the fabric-covered core.

Another object within the contemplation of my invention is to provide a cam-controlling device for advancing the carrier-sustaining carriage toward the core and, then, effecting its quick return to starting position. r

The invention has other objects and advantages in View and these will be made apparent in the following description:

In order that the invention may be more readily comprehended, I have shown a preferred embodiment and utilization of the samein the accompanying drawings; these being, however, merely illustrative, since it will be manifest that the invention is susceptible of-other embodiments and utilizations and, also, of a wide range of modification and variation without departing from its spirit or sacrificing any of its advantages or underlying principles.

'In these drawings,

Figure 1 is a fragmentary view, in side elevation,- partly in section, of a machine constructed in accordance with my invention; 7

Fig. 2 is a view in plan thereof;

Fig. 3 is a view in end elevation thereof; and Fig. 4 is a sectional view of a detail of the structure.

Referring to the drawings, the referencenumeral 1 designates a tire-forming core which, in this instance, is rotatable. To that end, it-is supported in astandard 2, and is'driven (through a belt or sprocket 3) by a motor l, preferably of a mult1-speed type and controlled by the operator from a ,l'uxtaposed t9 991's is a stitcher-sup Patented Oct. 28 1919. I

I porting stand or standard 6. On this travels a stitcher-sustaining carriage 7 adapted to have an advancing movement toward and a receding movement away from the axis of the core 1. Means for effecting these movements are provided; and, in this instance, such means preferably comprise a single mechanism for effecting both of the movements. This mechanism includes a cylindrical member or carriage-actuator 8 which is fast'on a shaft 9 that turns in bear.-

' ings 10 and 11 formed in opposite ends of the standard 6.

On this shaft is a wormwheel 12 adapted to mesh with receive motion from a Worm 13. This Worm is carried by a transversely-extending shaft 14, journaled, as at 15, on a bracket 16. The shaft 14 receives motion (through a belt or sprocket-17) from a motor 18 juxtaposed and-wormmheel' 12, this shaft imparts a rotative movement to the cam-member 8;

and, as the carriage-carrying roller 20'traversesthe cam 19, the carriage will be caused to move in respect to the axis of the core,

first for a relatively slow advancing move-- ment, andthen for a relatively quick returning movement, the cam-groove 19 being-so formedas to function to produce the character of movements referred to.

Suitably mounted on the top-plate 21 of the carriage are' stitcher-supporting arms or carriers 22, there being a pair of these. Each arm'of the pair carries a stitcher-disk vor member 23 adapted to traverse the surface of the core to stretch and press down the plies or strips of fabric to be formed thereon for producing the desired carcass.

The stitchers or stitcher-disks 23 may be of any appropriate design, and are so mounted on the extremities of the arms 22 as to be freely rotatable thereon. The arms are p1voted, as at 24, and have a swinging movement on their pivots so as to move the stitchers indefinite and conforming relation to the varying contour of the core 1 as such stitchers traverse the sides of the core in their traveling movement toward the axis I thereof, suchaxial movement belng 1mparted to the disks by the carriage as it moves to and fro in relation to the core.

The arms 22 have extensions 25 whichcarry upstanding, headed screws 26. These screws are adapted to operate in arcuate slots 27 cut at opposite sides of a fulcrum 28 of an arm or ,stitcher-controlling' member 29. This latter is provided with an ex tension 30, and to this is pivotally connected an-actuating-device,.comprising a link 31 and an arm 31, the link and arm being pivotally connected at 31. This arm 31 extends at approximately right-angles to theextension 36 and slides longitudinally in a 1 pair of bearings 32 formed inthe upper end of abracket 33 which is-Jigid on the standard 6.

The longitudinally slidable arm 31 carries at its-free end a plunger 34 working in a housing 35 which carries a pendant roller I of a controlling-member or swinging plate 42. This plate has a swinging movement on a pivot 43 disposed'on a bracket 44 which is. secured rigidly to the side of the standard 6.. The controlling member 42 is rigidly held in operative position by spring-pressed locking-pins 45 which-are adapted to extend into holes (notshown) formed in the upper part of the bracket44. The roller 361s adapted to traverseeither the cam-slot 40 or the camslot 41, as'the case may be, and thereby actu-. ate the housing 35 to cause the slidable arm 31 to swing the arm-controlling member 29 andv thereby effect a swinging movement of the stitcher-carriers 22: The two cam" grooves or slots 40 and 41 are provided to accomplish relatively different movements of the stitcher-carriers 22 according ,to whether the stitchers 23 are performing the under head or over-bead operation: It will be noted that these cam-slots 40 and 41 are of somewhat different configuration. As shown in. Fig. 2, the parts are set to operate for an under-bead operation of the stitchers and to this end the roller 36 occupies an' operative position in the cam-Slot 40. I If .the stitching action-has been-accomplished for the under-bead operation, and it be then desired to perform the over-bead operation, the operator withdraws the roller 36 on the housing 35 from the slot 40 and positions the roller in the slot' 41. To permit this, the plunger 34 is pivotally connectechto the arm 31 but the housing, and thus the roller 36, 'is held in operative position in either of the. slots 40 and 41 in the plate 42- by a spring 46.. When the shift is made from the slot 40 to the slot 41, or vice versa, the operator Withdraws one of the two locking-pins 45 from its hole and this permits the plate 42 to be swung freely .on its pivot,

this being facilitated by the operator grasping the handle 47 on the plate 42.

Operation Assuming that a ply of fabric assosee riage-actuator to move the carriage toward the axis of the core. As the carriage and, thus, the stitcher carriers 22, advance toward the axis of the core, the arm-controlling member 29 will be swung on its fulcrum 28, the swinging movement being controlled by the amount and character of movement per mitted to the arm 31 in its bearings 32, this arm 31 being, in turn, controlled by the traversing movement of the roller 30 in the slot 40, it being then performing its underbead operation. By reason of the link-connection between the extension 30 of the controlling member29' and the arm 31*, the former is permitted to have movement with the carriage and at the same time effect a shifting movemenfiof the arm 31* in its bearings. Thereupon, the carriage-controL linoroller 20, in traversing the cam-groove 19 in the member 8, will cause the carriage to be quickly returned to starting position. The stitchers 23, having formed one or more plies of fabric upon the core, the beads are thereupon positioned at the sides of the fabric-covered core, whereupon the machine will be adjusted to-perform the over-bead operation: This will be accomplished by shifting the roller 36 out of the cam-groove 40 and into the cam-groove 41, whereupon, by another advancing movement of the carriage, the roller 86 will then traverse the cam-slot 41, it being noted that this slot is provided with an irregular section 48 which is not similarly provided in the slot- 40. This irregular section in the S10E41 causes the proper movement and action of the stitchers in their traveling movement and around the bead. I Since the plate 42 swings on a fulcrum ,whichis located adjacent one corner, the

"over-bead controlling-slot 41 is disposed at an angle to the direction in which the slot 40 extends but, when the plate is swung so as to position it for the traversingmovement in it of the roller 36, this slot 41' will occupy a position approximately parallel to the direction of travel of the carriage. The plate 42 is provided with an arcuate slot 4:9 in which works a headed screw 50 and by which the plate, in its swinging movement, is guided so .as properly to positlon the slots 40 and 41 in respect to the operating position of the roller 36 and the semen. From the foregoing, it Wlll; be percelved that I have devised a simple but efi ectlvo means of controlling the positioning move ment of the stitcher-ca'rriers for the different movements which they must have in presenting the stitchers 23 to the varying contour of the surface of the core and particularly with reference to the beads thereon; the operation of the stitcher-carriers being in timed relation to the travel of the carriage and the movement of the carriage being defifnitely controlled and predeterminately positionable by the groove-member 8 whichforms a part of the carriage-actuating-mechanism.- By this means, also, the pressure of the stitcher-disks 23 with respect to the sides of the core is accurately equalized, and this is an important desideratum in the action of effecting transverse stretching of the fabric as'it is being formed upon the core.

As will be seen, the carriage is operated for its advancing and receding movements by a single mechanism which includes the grooved roller 8; this operating in a manner to insure the proper speed of travel of the carriage toward the axis of the core, such advancing movement being relatively slow so that the stitchers 23 may move at slow speed transversely of the ply of fabric and thereby effect a transverse stretching of the same while the stitchers 23 travel along a spiral line which is formed by the progres sive movement of the stitchers over the surfacel of the fabric, the core during this time traveling at relatively high speed.

In addition, the form of the cam-slots 40 and 41 is such as to produce proper movement of the stitcher-controlling member 29 and this in turn imparts the desired relative movement to the stitcher-carriers 22 to effect both a separating movement of the carriers as the stitchers traverse the wider diameter of the core and, then, an inward movement of the carriers as the stitchers traverse the narrowing section of the core.

When the stitchers have reached their limit of inward movement. and the grooved roller 8 has then to accomplish a quick return of the carriage. and, thus, of the stitchercarriers 22 to starting position. thestitchercontrolling member 29 will be rapidly shifted to spread the carriers apart so that the stitchersmay notimpinge against the core as they are being drawn by the carriage back to their initial position.

What I claim is:

' 1. A machine for making tire-carcasses comprising a carriage having a to-and-fro movement, and means for effecting such, movement including a rotatable driving membeixdirectly connected to the carriage and having a cycle of rotation during which including a'support-a carriage having a toand-fro movement thereon, 111cansforbliectand-fuo movement thereon, driving mechanism for the carriage including a powerdriven cam-member having a cycle of rotat1on durlng which the carriage 1s shifted forward and backward as a complete cycle of movement, and coacting means on the carriage and member for eifecting, first, a relatively slow advancing movement of the car riage and, then, a relatively quick returning movement thereof.

4. A machine forbuilding tire-carcasses including a support, a carriage having a toand-fro movement thereon, a motor-driven shaft journaled 1n the support, a cam-member on the shaft turningon an-axis extend- ;ing in the general direction of travel oflthe carriage and means carried by the carriage andficoactlng with the cam-member for effe,cting an advancing and receding movement of the carnage;

i -5. A machine for building tire-carcasses including. a standard, a shaft journaled therein, a worm-wheel on the shaft, a wormgear meshing with the worm-wheel, a shaft on which the worm-gear is mounted and journaled in the standardya motor for driving the last-mentioned shaft, a cam-member fast on the first-mentioned shaft, acarriage 'having a to-and-fro movement on the standard, and ,means depending from the carriage andeoacting with the cam-member for efiecting an advancing movement of the car- 5 riage and then for efl'ecting a returning movement thereof. t

6. A machine for buildlng tlre-carcasses including a carriage-support, a. tire-forming .core juxtaposed to the support, a carriage having a to-and-fro movement on the support,- and means for actuating the carriage includingdriving mechanism, a constantly- -ope rating carriage-actuator rotating on an axis extending in the general direction of the travel of the carriage and moving under the influence of the driving mechanism, and means carried by the carriage andcoactmg with the actuator for effecting an advancing movement of the carriage toward the axis of the core and then a returni ng movement of the carnage to startmg position.

7. A machine for building tire-carcasses including a rotatable tire-forming core,

- m eflecting movement/of the core, a

carriage-support, a carriage having a to-anol fro movement on the support, mean for acteatime tuating the carriage including driving mechanism, a carriage-actuator rotatable on an axis extending in the general directionaoi, the travel of the carriage, having a cycle of rotation during which the carriage is shifted forward and backward as a complete cycle of travel, and moving under the influence of the driving mechanism, and means carried by the carriage and coacting with the actuator for effecting an advancing movement of the carriage toward the axis of the core and then a returning movement of the, carriage to starting position.

8. A machine for building tire-carcassesv 1111Cl1ld111g a rotatable t1re-form1ng core,

means for effecting. movement of the core, a carriage-support, carriage having a to; and-fro'movement on the support, means for actuating the carriage including driving mechanism, a carriage-actuator moving under the influence of the driving mechanism,

and means carried by the carriage and co-- acting with the actuator for effecting an advancing movement of the carriage toward the axis of the core and then a returning movement of the carriage to starting position, said driving mechanism including a motor operable independently of the coremoving means.

9. A tire-building machine including a support, a carriage having a to-andfro movement thereon, means for effecting ad-' vancing and receding movements of the car-- riage including a carriage-actuator having a cycle of action during which the carriage" is shifted forward and backward as a complete cycleof movement, stitcher-carriers on the carriage having a swinging movement, a carrier-controlling member on the carriage and connected to the stitcher-carriers, a

, cam-member juxtaposed to the stitcher-car rlers, and a connection between the stltchercontrolling member and the cam-member and influenced by the latter to actuate the former and thereby move the stitcher-carriers.

10. A tire-building machine including a support, a carriage having a to andfro movement thereon, means for effecting advancing and receding movements of the carriage including a carriage-actuator having a cycle of action during which the carriage is shifted forward and backward as a complete cycle of movement, stitcher-carriers on the carriage having a swinging movement, a carrier-controlling member on the carriage and connected to the stitcher-carriers,.a cammember juxtaposed to the stitchencarriers, and a connection between the stitcher-controlling member and the cam-memberand influenced by the latter to actuate the former and thereby move the stitcher-carriers, the movement of the 'stitcher-controlling member being in timed relation to the movement of the carriage-actuator,

("whereby the carriers are swung on 11. A tire-building machine including a support, a carriage having an automatic to- ,and-fro movement thereon, a'carriage-activ ator having a cycle of action during which the car-1age is given an advancing and receding movement as a complete cycle of travel, stitcher-carriers mounted for i a swinging movement on the carriage, a controlling member for the carriers fulcrumed for a swinging movement on the carriage,

a cam-carrying member juxtaposed to the stitcher-controlling member, and a connection between the stitcher-controlling member and the cam-carrying member whereby, .as the carriage is moved, actuation of the stitcher-carriers is eltected under the guiding influence of the cam-carrying member.

12. A tire-building machine including a support, a carriage having an automatic toand-fro movement thereon, a carriage actuator having a cycleof action during which the carriage is given an advancing and receding movement as a complete cycle of travel, stitcher-carriers .mounted for a swing ing movement on the carriage, a controlling member for the carriers fulcrumed for a swinging movement on the carriage, a cam-carrying member juxtaposed to the stitcher-controlling member, a connection between the stitcher-controlling member and the cam-carrying member whereby, as the carriage is moved, actuation of the stitchercarriers is efi'ected under the guiding influence of the cam-carrying .member, and means for efl'ecting movement of the carriage comprising driving mechanism including a carriage-actuator whereby the movement imparted by it to the carriage is trans: mitted to the stitcher-controlling memberto actuate the stitcher-carriers.

13. A machine for building tire-carcasses including a-support, a carriage'having a toand fro movement thereon, stitcher-carriers pivoted on the carriage, rotatable on the carriers, a stitcher-controlling member pivoted on the carriage and provided with arcuate slots, mean carried by the carriers and working in the slots whereby the carriers are swung on their pivots, a cam-member swingingly mounted on the support and provided with a plurality of cams, a cam-traversing deviceworking in one or another of the cams, and aconneetion between the cam-traversing the titcher-controlling member.

14. A machine for building tire-carcasses including a support, a carriage having a toand-fro movement thereon, stitcher-carriers pivoted on the carriage, stitcher-disks freely rotatable on the carriers, a stitcher-controlling member pivoted on the carriage and provided with arcuate slots, means carried by the carriers and working in the slots .their pivots, a cam-member 'swingingly mounted device and longitudinal ,st1tcher-controll1ng member moves with the stitcher-disks freely and the instrumentality whereby,

on the support and provided with a plu-' rality of cams, a cam-traversing device working in one or another of the cams, a connection between the can'i-traversing device and the stitcher-controlling' member, and a bearing for the connection whereby it is guided for a longitudinal sliding movement as the stitcher-controlling member moves with the carriage.

10. A machine for building tire-carcasses including a support, a carriage having a toand-fro movement thereon, stitcher-carriers pivoted on the carriage, stitcher-disks freely rotatable on the carriers, a stitcher-controlling member pivoted on the carriage and provided with arcuate slots, means carried by the carriers and working in the slots whereby the carriers are swiuig on their pivots, a cam-member swingingly mounted on the support and provided with a plurality of cams, a cam-traversing device working in one or another of the cams, a connection between the cam-traversing device and thestitcher-controlling member, a bearing for the connection whereby it is guided for a sliding movement as the carriage, and means for holding the cammember in any of a lurality of positions.

16. A machine for making tire carcasses including a support, a carriage having a toand-fro movement thereon, a carriage-actuator having a cycle of revolution during.

which the carriage is. first advanced an then returned to starting position as a completeand continuous cycle of travel, and coacting means on the carriage and actuator for efl'ecting such cycle of travel of the carriage. 1

17. A'machine for making tire carcasses including a support, a carriage having a toand-fro movement thereon, a carriage-actuator having a cycle of movement during which the carriage is first advanced and then returned to starting position as a complete and continuous cycle of travel, coactmg plete and continuous cycle of travel, coacting means on the carriage and actuator whereby movement of the former is effected by the latter, stitcher-sustaining members on the carriage, a cam instrumentahty on the support, and a 'conection between the In Witness whereof, I have hereunto.

members and the instrumentality whereby, signed my name'in th during the motion of said actuatoi and the scribing Witnesses.

cycle-travel of the carriage, said members WILLIAMG. TYLER. 5 are actuated, said can1-instrumenta1ity being Witnesses:

shiftable at the will of the operator to vary VIRGINIA OI P1511,

the action 0'? the members. i LIBBLE A. POBQRSKY.

e presence of two sub- 

